id: GO-2020-0020
modules:
    - module: github.com/gorilla/handlers
      versions:
        - fixed: 1.3.0
      vulnerable_at: 1.2.1
      packages:
        - package: github.com/gorilla/handlers
          symbols:
            - cors.ServeHTTP
summary: Improper access control in github.com/gorilla/handlers
description: |-
    Usage of the CORS handler may apply improper CORS headers, allowing the
    requester to explicitly control the value of the Access-Control-Allow-Origin
    header, which bypasses the expected behavior of the Same Origin Policy.
published: 2021-04-14T20:04:52Z
ghsas:
    - GHSA-jcr6-mmjj-pchw
credits:
    - Evan J Johnson
references:
    - fix: https://github.com/gorilla/handlers/pull/116
    - fix: https://github.com/gorilla/handlers/commit/90663712d74cb411cbef281bc1e08c19d1a76145
cve_metadata:
    id: CVE-2017-20146
    cwe: 'CWE 284: Improper Access Control'